get wrong

get (one) wrong

To misunderstand one. Don't get me wrong, I appreciate everything your mother has done for us—but it's time for her to get her own place. You've got him all wrong—I know he seems gruff, but he's a total sweetheart.
See also: get, wrong

get (something) wrong

To do, understand, or answer something inaccurately and/or incorrectly. I sure didn't ace the exam, but I hope I didn't get too many wrong. Take your time—you'll just end up making more work for yourself if you get it wrong the first time. That electrician got the wiring wrong, and now nothing in the house will turn on!
See also: get, wrong
Farlex Dictionary of Idioms.

get someone (all) wrong

to misunderstand someone's intentions or character. I think you've got me all wrong. I want to be your friend, not your enemy.
See also: get, wrong
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • get (one) wrong
  • get somebody wrong
  • get someone wrong
  • take (one) wrong
  • take wrong
  • don't get me wrong
  • take (something) the wrong way
  • take something the wrong way
  • take the wrong way
  • take (something) in the wrong way